CN1059942C

CN1059942C - Multi-phase gas phase corrosion-inhibiting paper and method for preparing same

Info

Publication number: CN1059942C
Application number: CN 97106053
Authority: CN
Inventors: 韩志军; 黄涛; 王汉生
Original assignee: 韩志军
Priority date: 1997-08-20
Filing date: 1997-08-20
Publication date: 2000-12-27
Anticipated expiration: 2017-08-20
Also published as: CN1208795A

Abstract

The present invention relates to multi-phase gas-phase anticorrosive paper and a making method thereof, which belongs to protective packing materials. One surface of neutral raw paper containing a wet strength agent is sprayed with a gas-phase inhibitor which is prepared from the components of the following proportion by weight: 3 to 4 of sodium benzoate, 1 of benzortiazoel, 2 to 4 of hexamethylenetetramine, 2 to 4 of dimethyl imidazoline, 2 of 4 urea, 50 to 80 of alkaline ionized water, and the neutral raw paper is dried and packed into the multi-phase gas-phase anticorrosive paper. The multi-phase gas-phase anticorrosive paper has the advantages of simple preparation technology, obvious corrosion inhibition function of various kinds of metal, marine climate resistance, broken resistance of wet strong raw paper, high tearing degree, safety, little pollution and energy saving, and is a preferred protective material for long storing and packing various metal products.

Description

Multi-phase gas phase corrosion-inhibiting paper and preparation method thereof

The present invention relates to a kind of multi-phase gas phase corrosion-inhibiting paper and preparation method thereof, belong to the protective packaging material.Be particularly suitable for the long term storage packing of multiple metal and nonmetallic compound artifact.Also can be used for the protective packaging of various metallic articles in the transport by sea process.

Volatile rust preventive paper is used for the surfacecti proteon packing of metallic article, and existing very long history is owing to this protection mode is widely used except that advantages such as envelopes with respect to being coated with convenient totally need not of many provisional safeguard procedures such as antirust oil, water-soluble anti-rust liquid.But, also expose some drawbacks the people be suitable not to the utmost by practice, as all being common neutral body paper because of it is used usually, after the moisture absorption intensity low and anti-broken, tear resistance is poor, often causes packages in damaged condition to make the protective packaging failure; The prescription of the vapor phase inhibitor of being brushed simultaneously is also unreasonable, contain poisonous carcinogen and a large amount of industrial alcohols, not only endanger health of operators, contaminated environment, processing causes trouble to discharging of waste liquid, and do not note slightly toward contact meeting breaking out of fire accident, make safety in production be subjected to serious threat; The function singleness that also has, only be applicable to a certain metalloid, it is applied be subjected to certain limitation, though the product that also has is indicated multiple metals such as coloured, black all there is protective action, but actual effect is also not ideal enough, the short protective packaging that is unsuitable for exporting in the transport by sea process of protection phase, the more not satisfied military products needs long term storage that has, once use, ten thousand not protective packaging requirements of losing are had no way out, and have only the vacuum nitrogen filling of employing gas tank to transport and store and deposit, cause the cost height of protective packaging, strengthen expenses.

The object of the present invention is to provide that a kind of preparation technology is simple, body paper wet strong high, anti-broken, tearability is good, the volatile rust prevention agent prescription is reasonable, the humble pollution of toxicity is little, production safety, cost are low, effective to multiple metal protection, long, multi-functional multi-phase gas phase corrosion-inhibiting paper of protection phase and preparation method thereof.

Multi-phase gas phase corrosion-inhibiting paper of the present invention is that one side sprays vapour phase inhibitor (A liquid) by the wet strong body paper of neutrality, and it is as follows that it forms proportioning (ratio of weight and number):

Sodium Benzoate: benzotriazole: hexamethylenetetramine: 2 methylimidazole quinolines: urea: alkali ion water=(3-4): 1: (2-4): (2-4): (2-4): (50-80).

The step of preparation process of multi-phase gas phase corrosion-inhibiting paper of the present invention is as follows:

(1) be that B liquid is standby by following composition proportioning (weight %) preparation wet strength agent.

Phosphoric acid (5-10) %, formaldehyde (30-50) %, melamine (2-6) % alkali ion water surplus.

(2) wet strength agent of getting the 2-3% of paper pulp weight is squeezed in the paper pulp, and it is A liquid dry packing that the neutral wet strong body paper of preparation, one side spray vapour phase inhibitor.

The present invention compared with prior art, owing to adopted the wet strong body paper of the neutrality that contains wet strength agent, poisonous carcinogen and industrial alcohol have been eliminated in the vapor phase corrosion inhibitor agent prescription, overcome the technology prejudice that benzotriazole is considered to be insoluble in water always, the compatibility vapour pressure of prescription is just arranged in pairs or groups rationally, synergy is multiplied, not only ferrous metal there is corrosion inhibition as the Sodium Benzoate in the prescription, and be the cosolvent that copper is had the benzotriazole of excellent corrosion inhibition, make it to be dissolved in alkali ion water and become a reality; And for example hexamethylenetetramine and urea compatibility all have tangible corrosion inhibition to black and urea thereof and benzotriazole compatibility to multiple metal such as coloured; The adding of 2 methylimidazole quinolines not only has mildew-resistant, insect protected bactericidal action, but also has the resisting corrosion of chlorine ion effect.Make its product have the effect of heat resistance atmosphere, the anti-marine climate of industrial atmosphere, alkali ion water has very strong infiltration solvability, helps more that various corrosion inhibiter are synergistic to be given full play to.And by various simulated acceleration tests and domestic and international coastal port harbour sealed up for safekeeping in 3 years preparation technology that experiment has confirmed simple, to multiple metals such as steel, iron, copper, zinc, cadmium, aluminium, silver, tin have significant corrosion mitigating effect, anti-marine climate ability strong, nonmetallic materials are not had harm, reach the standard-required of the MIL-P 3420B of U.S. army, wet strong body paper anti-broken, tearability is strong, the humble pollution of vapour phase inhibitor toxicity is little that operating personnel are endangered little, low a large amount of industrial alcohols, the production safety of saving of cost.Making ordnance be in emergent on the alert need not constantly to the military products protective packaging simultaneously removes envelope, just has more Special Significance.

Content of the present invention is further described in detail by embodiment:

1, the preparation of (1), vapour phase inhibitor: the Sodium Benzoate of getting 3 parts of weight, add the benzotriazole stirring and dissolving of adding 1 part of weight in the alkali ion water of 50 parts of weight after the stirring and dissolving, the 2 methylimidazole quinolines that add the urea of the hexamethylenetetramine of 4 parts of weight, 2 parts of weight, 4 parts of weight again stir that to make it fully be dissolved as A liquid standby.

(2), the preparation of wet strength agent:

At first taking by weighing 6 kilograms of melamines adds in 59 kilograms of alkali ion waters and stirs, add after 30 kilograms of formaldehyde when being warmed up to 65 ℃, transfer PH=9 with 4%NaoH, being warming up to 75 ℃ of stirrings again makes addition reaction fully finish need 50 minutes, this moment, solution was transparent, formaldehyde flavor disappearance, under agitation, add 5 kilograms of phosphoric acid rapidly, stir again and leave standstill after 20 minutes that to be B liquid when being emulsion standby.

(3), get the B liquid of paper pulp weight 2%, throw the neutral wet strong brown paper of pulp preparation into, the compound 0.05-0.10mm one deck polyethylene film of one side, another side spraying A liquid, drying, packing.

2, (1), get the alkali ion water of 4 parts of weight Sodium Benzoates, 80 parts of weight, the benzotriazole of 1 part of weight, it is that A liquid is standby that 2 methylimidazole quinolines of the urea of the hexamethylenetetramine of 2 parts of weight, 4 parts of weight, 2 parts of weight prepare vapour phase inhibitor with the process conditions identical with example 1;

(2), getting 10 kilograms of phosphoric acid, 50 kilograms of formaldehyde, 2 kilograms of melamines and 38 kilograms of alkali ion waters, to prepare wet strength agent with the process conditions identical with example 1 be that B liquid is standby;

(3), the B liquid of getting paper pulp weight 3% throws that the neutral wet strong imitative sheepskin body paper of preparation, one side spray vapour phase inhibitor A liquid, drying, packing in the paper pulp into.

Multi-phase gas phase corrosion-inhibiting paper of the present invention quickens by following standard that analogue technique index test (table 1), bursting strength, tearability contrast test are seen (table 2), the coastal area was sealed test up for safekeeping in open-air 3 years with container, the results are shown in (table 3) both at home and abroad

Protective packaging material technology index table 1 of the present invention

Project	Standard	Index	Conclusion
Project	Standard	Index	Conclusion	Adaptability	QB1319-91	Rustless	Qualified
Moisture-resistant is hot	QB1319-91	Rustless	Qualified	Adaptability	QB1319-91	Rustless	Qualified
Moisture-resistant is hot	QB1319-91	Rustless	Qualified	Contact corrosion	Japan JISZ1535-1976	Rustless	Qualified
The vapor phase corrosion inhibitor ability	The MIL-P 3420B of U.S. army	Rustless	Qualified	Contact corrosion	Japan JISZ1535-1976	Rustless	Qualified
The vapor phase corrosion inhibitor ability	The MIL-P 3420B of U.S. army	Rustless	Qualified	Seal up for safekeeping for a long time	The MIL-P 3420B of U.S. army	Rustless	Qualified

Bursting strength, tearability contrast test table 2

The coastal area was used contrast information slip 3 in 3 years both at home and abroad

Explain: 1, place: domestic and international coastal dock, harbour;

2, the time: in May, 1991-1994 year May

3, table 3: press QB1319-91 standard grading A level, the B level, the C level, the D breakage is got rusty.

Claims

1, a kind of multi-phase gas phase corrosion-inhibiting paper is characterized in that one side sprays vapour phase inhibitor A liquid by the wet strong body paper of neutrality, and it is as follows that it forms the proportioning ratio of weight and number:

Sodium Benzoate: benzotriazole: hexamethylenetetramine: 2 methyl imidazole quinolines: urea: alkali ion water=3-4: 1: 2-4: 2-4: 2-4: 50-80.

2, the method for preparing the described multi-phase gas phase corrosion-inhibiting paper of claim 1, its technology step is poly-as follows:

(1), preparing wet strength agent by following composition proportioning weight % is that B liquid is standby

Phosphoric acid 5-10%, formaldehyde 30-50%, melamine 2-6%, alkali ion water surplus;

(2), the wet strength agent of getting the 2-3% of paper pulp weight is B liquid, squeezes in the paper pulp, it is A liquid, drying, packing that the neutral wet strong body paper of preparation, one side spray vapour phase inhibitor.